Definición de pit prop en inglés:

pit prop

Saltos de línea: pit prop

sustantivo

  • A large wooden beam used to support the roof of a coal mine.
    Más ejemplos en oraciones
    • It features pit props for roof beams, bricks from wash houses, a massive lump of coal for an alter and a half winding wheel on a wall.
    • The use of wood in the foundries and for pit props in the mines must have been considerable.
    • Its cargo of pit props - used to hold up mine shafts - went into the sea and its crew overboard.

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Palabra del día astrogation
Pronunciación: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space